EP2915330A1 - Procédé et module de basculement d'un premier programme vers un deuxième programme, procédé de diffusion, tête de réseau, programme d'ordinateur et medium de stockage correspondants - Google Patents
Procédé et module de basculement d'un premier programme vers un deuxième programme, procédé de diffusion, tête de réseau, programme d'ordinateur et medium de stockage correspondantsInfo
- Publication number
- EP2915330A1 EP2915330A1 EP13783611.0A EP13783611A EP2915330A1 EP 2915330 A1 EP2915330 A1 EP 2915330A1 EP 13783611 A EP13783611 A EP 13783611A EP 2915330 A1 EP2915330 A1 EP 2915330A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- program
- signal
- audio fragment
- receiver
- broadcast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/10—Arrangements for replacing or switching information during the broadcast or the distribution
- H04H20/103—Transmitter-side switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8358—Generation of protective data, e.g. certificates involving watermark
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/50—Aspects of broadcast communication characterised by the use of watermarks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/90—Aspects of broadcast communication characterised by the use of signatures
Definitions
- Method and module for switching from a first program to a second program broadcast method, headend, computer program and corresponding storage medium.
- the field of the invention is that of the transmission and broadcasting of content, especially radio or television data.
- the invention relates to the "switchover" or "unhooking" of programs in a broadcast network, making it possible to replace, at a user's broadcast site or terminal, a first program with a program. second program in a data stream.
- the first program is a national program, broadcast by a national network head.
- the second program is a local or regional program, a drop-down banner, an alert, a local advertisement, etc., to be inserted as a replacement for the national program in the data stream.
- the invention applies in particular, but not exclusively, to a data stream that complies with the DVB-T or DVB-T2 ("Digital Video Broadcasting - Terrestrial") broadcast standards for "digital terrestrial video broadcasting" or an audio data stream.
- DVB-T or DVB-T2 Digital Video Broadcasting - Terrestrial
- TNT digital terrestrial television broadcasting
- stalling makes it possible to substitute for a main program, such as a television program covered nationally on France 3 (registered trademark), a secondary program, such as a television program with regional coverage on France 3. It thus passes from a broadcast by a national network head, broadcasting the main program, to a regional broadcast site, broadcasting the secondary program.
- a main program such as a television program covered nationally on France 3 (registered trademark)
- a secondary program such as a television program with regional coverage on France 3. It thus passes from a broadcast by a national network head, broadcasting the main program, to a regional broadcast site, broadcasting the secondary program.
- FIG. 1 illustrates an example of a digital broadcasting network, comprising a Tx headend 11 feeding one or more Rx1 121, Rx2 122, Rx3 123 broadcast sites, located at distinct geographical sites.
- Each broadcast site Rx1 121, Rx2 122, Rx3 123 comprises a receiver and a repeater, which can optionally be combined.
- the term "broadcast site” is thus understood to mean an equipment or system comprising a receiver followed by a retransmitter or integrated in a retransmitter.
- the headend Tx 11 generates a digital signal, also called signal or data stream, transmitted by a network adapter and conveyed to Rxl broadcast sites 121, Rx2 122, Rx3 123 via a distribution network 13, for example a satellite distribution network.
- a digital signal also called signal or data stream
- Such a signal is for example of type M PEG2-TS (in English "Motion Picture Expert Group 2 - Transport Stream"), and carries a main program.
- One or more of the broadcast sites Rx1 121, Rx2 122, Rx3 123 can then "pick up", replacing the main program by a secondary program in the data signal, and then broadcast the signal thus modified to receiving terminals.
- Such a stall technique is particularly described in the ANSI / SCTE 35 standard. It relies on the use of the MPEG2-TS transport stream for the transport of stall commands. According to this technique, the transport layer is used to transmit information related to the insertion of regional or local data.
- the invention proposes a new solution that does not have all of these disadvantages of the prior art, in the form of a method of switching from a first program to a second program in a broadcast network implementing a head end and at least one receiver.
- such a method implements the following steps, at the level of at least one of the receivers:
- the invention thus proposes an original solution for stall based on the recognition of a particular audio fragment.
- a particular audio fragment if it is detected in the signal, is therefore likened to a stall order.
- an audio fragment is conventionally provided in the signal to ensure a transition between two programs, hiding the imperfections related to the transition.
- such an audio fragment is conventionally used to ensure the linking between two programs.
- this audio fragment thus has a dual function, since it makes it possible both to ensure a transition between two programs and to achieve a stall.
- the invention proposes to analyze the audio portion of the signal (which may be a simple audio signal, an audio / video signal, a multimedia signal, etc., digital or analog), to detect whether the signal carries a particular audio fragment.
- the invention thus makes it possible for an audio receiver (belonging for example to a broadcasting site or to a terminal of the smart phone, tablet, computer, car radio or, more generally, any terminal adapted to receive a broadcast signal) type to achieve a stall. a first source to a second source on detecting a fragment of sound.
- the invention is therefore at the level of the physical layer, which makes it possible to process a wide range of data streams, as long as they include an audio part.
- the proposed solution is applicable independently of the chosen transport layer (M PEG2-TS, IP / RTP, etc.) and coding.
- the stall technique of the ANSI / SCTE 35 standard of the prior art was implemented at the transport layer and therefore applied exclusively to MPEG2-TS streams.
- the invention provides more precision on the moment of stall in relation to the first source. Indeed, as soon as the receiver recognizes a specific audio fragment, it knows that it must switch to the second source, for example just at the end of the specific audio fragment.
- the particular audio fragment must respect a minimum duration, for example at least equal to 1.5 seconds.
- the specific audio fragment is of the sonic comma or sonal ("jingle") type.
- the technique according to the invention therefore does not require the modification of the contents, since sonic commas or jingles are already inserted at the beginning and end of program ranges during production. .
- commas surround a range of advertising. It is thus possible according to the invention to switch from a first source (for example broadcasting a national program) to a second source (broadcasting for example a local advertisement) to detect a first sound point, then to switch back from the second one. source to the first source to detect a second decimal point.
- the second program (or the second source broadcasting the second program) is chosen taking into account at least one criterion belonging to the group comprising:
- Another source is thus selected according to the detected specific audio fragment and / or information relating to the user of the terminal when the detachment is implemented at the terminal.
- the detection step is implemented over a predetermined time range.
- this information is set at the receiver of the broadcast site or the terminal. It can also be transmitted from the headend to the receiver. This information can also be updated regularly.
- the detection step implements the following steps:
- the signal is analyzed as and when the signal is regularly calculated (for example every 2 or 3 seconds) a new signature on the basis of a predetermined number audio samples of the signal.
- the resulting signature is compared to a signature database (also called a signature bank) known to the receiver.
- a signature database also called a signature bank
- This first embodiment therefore implements a calculation algorithm of signatures, also called "fingerprinting" in English.
- An advantage of such a technique is that it is resistant to signal processing, including compression and coding, or slight signal alteration.
- the signature associated with an audio fragment is unchanged whether the signal is compressed or not, which allows the detection of a specific audio fragment even if it is encoded or compressed, or slightly degraded.
- this first embodiment does not require the modification of the contents to be broadcast during their production.
- the detection step detects a tattoo representative of a specific audio fragment, previously inserted into the specific audio fragment.
- a tattoo is inserted in an audio fragment broadcast with the first program (either in the studio, during the creation of the first program, or at the head of the network), and we try to detect at the receiver a specific audio fragment comprising a tattoo.
- the stall occurs when the receiver receives a tattoo.
- This second embodiment therefore implements a tattoo algorithm, also called "watermarking" in English.
- an advantage of such a technique is that it is resistant to signal processing, including compression and coding, or slight signal corruption.
- the tattoo is invariant even if the signal is coded or compressed, or slightly degraded.
- the tattoo is calculated and inserted in an audio fragment before broadcast, and the receiver implements a simple tattoo detection (for example by means of a correlator).
- the detection step implements a step of comparing at least two samples of the signal with at least two samples of at least one audio fragment known to the receiver.
- This third embodiment can particularly apply if the signal is very simple, and has not undergone any coding or compression processing.
- the receiver has at its disposal a base of audio fragments, and that it compares audio samples of the signal with audio samples of audio fragments. known to the receiver.
- the switching method comprises a preliminary step of decoding the signal, feeding the detection step.
- the invention in another embodiment, relates to a module for switching from a first program to a second program in a broadcast network implementing a headend and at least one receiver.
- such a failover module comprises:
- the failover module being adapted to be implanted in at least one of the receivers.
- Such a failover module also called a switch, is particularly suitable for implementing the switching method described above. It is for example integrated in a receiver of a broadcast site or a user terminal.
- This module can of course include the various characteristics relating to the switching method according to the invention, which can be combined or taken separately. Thus, the features and benefits of this module are the same as those of the failover method and are not detailed further.
- the invention also relates to a smartphone-type terminal, tablet, computer, car radio, or more generally any terminal adapted to receive a broadcast signal (over IP, radiofrequency, etc.), equipped with such a switching module.
- a terminal comprises means for restoring the modified signal.
- the invention also relates to a method of rediffusion of a modified signal, in a broadcast network implementing a headend and at least one broadcast site comprising a receiver and a re-transmitter.
- such a method implements the following steps, at the level of at least one of the diffusion sites:
- the head end receiving a signal broadcast by the head end, the signal carrying a first program; detecting, in the signal, a specific audio fragment intended to provide a transition between two programs;
- Such a rediffusion method thus implements the switching method described above to replace a first program with a second program in a signal, and to broadcast the modified signal thus obtained.
- the invention in another embodiment, relates to a site for broadcasting a modified signal, in a broadcast network implementing a headend, the broadcast site comprising a receiver and a re-transmitter.
- the receiver comprises:
- the retransmitter comprises means for broadcasting the modified signal.
- Such a broadcast site is particularly adapted to implement the replay method described above. It includes a receiver, which can be followed by a repeater or integrated into the transponder.
- the invention further relates to a method of broadcasting a program in a broadcast network implementing a headend and at least one receiver.
- such a method implements the following steps, at the head end:
- the information representative of a specific audio fragment is a signature (also called acoustic fingerprint) obtained from the specific audio fragment.
- This signature is transmitted beforehand, during a first broadcast step (IP or radio frequency) to the receiver (s) broadcast sites or terminals to power a bank of signatures. Then, during a second broadcast step, the signal carrying the program and the specific audio fragment is also transmitted to the receiver (s) of the broadcast sites or terminals.
- the signal is then analyzed progressively and a new signature is regularly calculated, and at each determination, the signature obtained is compared with the bank of known signatures of the receiver.
- the information representative of a specific audio fragment is a tattoo representative of the specific audio fragment.
- the tattoo is inserted into the specific audio fragment, and the steps of broadcasting information representative of the specific audio fragment and of the signal diffusion are implemented simultaneously (since the tattoo is carried by the specific audio fragment). even worn by the signal).
- the invention aims to protect a headend broadcasting a program in a broadcast network implementing the headend and at least one receiver.
- the headend comprises:
- Such a headend is particularly adapted to implement the broadcasting method described above.
- the invention also relates to one or more computer programs comprising instructions for implementing a switching method and / or a replay method and / or a broadcasting method as described above, when this or these programs are executed by a processor.
- This or these programs can use any programming language, and be in the form of source code, object code, or intermediate code between source code and object code, such as in a partially compiled form, or in n ' any other desirable form.
- the invention also relates to one or more computer-readable and non-transitory storage media storing one or more computer programs comprising processor executable instructions for implementing a failover method and / or a replay method and / or or a diffusion method as described above.
- a storage medium can be any entity or device capable of storing the computer program (CD-ROM, hard disk, etc.).
- Figure 1 shows the structure of a broadcast network
- FIG. 2 presents the main steps of a diffusion method according to one embodiment of the invention
- FIG. 3 illustrates the main steps of a switching method according to one embodiment of the invention
- FIG. 4 illustrates the operation of a receiver of a broadcasting site according to a particular embodiment of the invention
- Figure 5 shows a first embodiment of the detection step of Figure 2
- FIG. 6 presents a second embodiment of the step of detecting the Figure 2
- FIGS. 7 and 8 show examples of a simplified structure of a failover module implementing a switching technique and a headend implementing a broadcasting technique according to a particular embodiment of the invention.
- the general principle of the invention is based on the use of the audio part (or a portion of the audio part) of a signal to switch from a first program carried by the signal to a second program, in a broadcasting network.
- a switchover may be implemented either at a broadcast site or directly at the terminal of a user, if such a terminal has the ability to integrate an audio recognition algorithm.
- a stall (or hang-up) order according to the invention is therefore obtained when a specific audio fragment is detected in the signal.
- a headend broadcasting a program in a broadcast network implementing the headend and at least one receiver (belonging to a broadcast site or to a broadcast site) are presented.
- a user terminal a user terminal
- broadcast site refers to an equipment or system comprising a receiver followed by a retransmitter or integrated in a retransmitter.
- a signal carrying a first program and at least one specific audio fragment (sound point, jingle, etc.) is generated.
- an audio fragment is conventionally provided in the signal to ensure a transition between two programs.
- the signal is broadcast or transmitted to the different broadcast sites and / or terminals, so as to allow a switch from the first program to a second detection program, by the receiver of at least one broadcast site or terminal, the specific audio fragment.
- information representative of the specific audio fragment is also broadcast or transmitted (20) to the various broadcast sites and / or terminals.
- this piece of information representative of the specific audio fragment may be a signature (also called acoustic fingerprint) obtained at from the specific audio fragment, transmitted beforehand to the signal to feed a bank of signatures, or a tattoo representative of the specific audio fragment, inserted into the specific audio fragment, and transmitted in the signal, or other.
- a signature also called acoustic fingerprint
- a tattoo representative of the specific audio fragment inserted into the specific audio fragment, and transmitted in the signal, or other.
- a receiver of a broadcast site or a user terminal analyzes the signal carrying the first program, which can be broadcast by the headend Tx 11, and tries to detect the presence of a specific audio fragment (such as a sonic comma, a jingle, etc.) in this signal.
- a specific audio fragment such as a sonic comma, a jingle, etc.
- the detected audio fragment is likened to a stall order, and during a second stall step 32, the receiver replaces the first program with a second program in the signal.
- the specific audio fragment thus has a dual function, since it makes it possible both to ensure a transition between two programs and to achieve a stall.
- the first program is a main program, broadcast by a national head end.
- a sounding point is inserted at the end of the main program, during the production of this program in the studio or when it is broadcast by the head end.
- the receiver of a broadcast site or the user terminal knows that it can immediately switch to a second program, also called secondary program, broadcast for example by a local source.
- a sound point is inserted at the end of the secondary program, during the production of this program in the studio or when it is broadcast by a source local.
- the receiver of the broadcast site or the user terminal knows that it can immediately return to the main program (or switch to a third program, depending on the content and / or type of the detected audio fragment and / or according to at least one information related to the user).
- the technique according to the invention can therefore be used to switch from a first program to a second program, or to switch from the second program to the first program.
- the invention can be implemented in a method of rediffusion of a modified signal.
- the invention in addition to the detection and stalling steps 31 implemented by a receiver of a broadcast site, the invention also implements a step of broadcast 33 by the repeater of the broadcast site, broadcasting the modified signal obtained by replacing the first program by the second program in the signal.
- an audio receiver having n sources S1, S2, S3, Sn, that is to say capable of receiving contents (programs) originating from n different sources, such as a national headend SI, is considered as an example.
- a local studio S2 files on a S3 d isque, etc.
- the national head end SI broadcasts a national stream on satellite contribution
- the local studio S2 broadcasts a local stream over IP
- S3 audio files are recorded on a disk, and so on.
- the chosen transport layer M PEG2-TS, I P / RTP, etc.
- Such a receiver is particularly adapted to receive a program from a first source among the n sources S1, S2, S3, Sn, to pick up to receive a program from a second source among the sources S1, S2, S3 , Sn, then hang up to receive a program from the first source again, using the failover technique according to the invention.
- the tilting or stalling technique is based on four main modules of the audio receiver:
- the stall command manager module 42 manages the programming of stalls.
- the stall command manager module 42 ensures in particular that the algorithm for detecting an audio fragment is implemented only during a predetermined time range Wtemp during which a stall is expected, in activating the audio recognition module 44 only during the predetermined time range.
- This time range Wtemp also called security window, can be parameterized and updated at the level of the stall command manager 42, or parameterized and updated at different sources.
- the stall command manager module 42 informs the stall module 41 on the new source on which the receiver must switch, in depending on the type and / or the content of the detected audio fragment and / or according to at least one information related to the user. For example, the receiver must switch from the source S2 to the source Sn, or from the source S3 to the source S1, etc.
- the stall module 41 thus selects the source (s) to be listened to on a stall command transmitted by the stall command manager module 42. If the data stream coming from this new source is coded, it is transmitted. to the decoding module 43 (optional).
- the decoding module 43 decodes the streams and feeds the output of the receiver.
- the audio portion of the decoded data stream is also presented to the audio recognition module 44, which implements the audio fragment detection algorithm. For example, as the data stream received by the receiver decodes, a predetermined number of audio samples of the decoded data stream are temporarily stored in a buffer memory 45 to compare these audio samples with audio samples known to the audio receiver. receiver.
- the audio recognition module 44 starts or stops the audio fragment recognition algorithm on order of the stall command manager module 42. When it detects the expected audio fragment, it informs the manager module 42.
- the audio recognition module 44 implements a signature calculation algorithm, also called “fingerprinting” in English, in order to identify the audio fragment sought.
- the audio recognition module 44 implements a tattoo detection algorithm, also called “watermarking” in English.
- the audio recognition module 44 can integrate a space storing the audio signature (s) to be found in order to trigger the stall, in the form of a base or bank of signatures. This module can also manage the audio signatures to be detected, such as adding, deleting or updating signatures in the signature database, for example.
- stall command manager module 42 is capable of managing hang-up commands by using the mechanism described above for the processing of the stall commands.
- FIG. 5 a first embodiment of FIG. the invention according to which the audio recognition module 44 implements a signature calculation algorithm.
- SI and S2 are considered.
- the source SI generates a digital signal carrying a first program comprising an audio part. It is considered according to this example that sound V commas are inserted into the digital signal before broadcast of the first program, for example at the beginning and end of this program.
- the signatures associated with these commas V can be calculated in a signature calculation module 51 and transmitted to the terminal and / or to the broadcasting site (via a radiofrequency or IP broadcast for example) for storage in a database.
- signatures 52 advantageously asynchronously to the production and broadcasting of the first program.
- Such a terminal or broadcast site therefore offers a data storage capacity, such as an audio signature bank.
- the receiver (of the broadcast site or of the user terminal) receives a digital signal broadcast by the source S1.
- the audio portion of the digital signal is decoded if necessary, and presented to the audio recognition module 44.
- the audio recognition module 44 As the digital signal is received and decoded, the audio recognition module 44:
- the audio recognition module 44 informs the stall command manager 42.
- the stall command manager 42 taking into account a base of actions to be performed according to the detected signature 53, generates a stall (or on-hook) order and informs the stall module. 41 of the new source on which the receiver must switch, such as the source S2, by means of an audio source selector for example.
- the receiver therefore receives a program broadcast by the source S2 (which can be rebroadcast by the repeater of the broadcast site in the case where the receiver is the receiver of a broadcast site, or restored on the terminal by example by playing the audio part).
- the stall command manager 42 may notably take into account at least one criterion belonging to the group comprising:
- a receiver of a broadcast site having three sources SI (satellite for example for the national stream), S2 (IP for example for regional information) and S3 (internal storage or files available on the network, for example for local advertising), the following actions can be defined in the action base to be performed: regional stall (satellite to IP), advertising stall (satellite to internal memory), return to the main source ( IP to satellite or internal memory to satellite), etc.
- Each action will be associated with a particular signature (trigger).
- the secondary source may be a stream broadcast over an IP network, a stream broadcast by radio wave (FM), a remote file available in a network or a file. present in a storage space of the terminal, previously downloaded for example.
- FM radio wave
- an action / signature association scheme for associating an action with a particular signature according to data from the headend for example, can be provided to the terminal and / or the broadcast site, in order to assist the stall manager 42 in deciding which source to switch to.
- this signature / action association scheme can be transmitted asynchronously from an action / signature association module 57 from the headend / production site to the action base module 53.
- optional clock 54, geolocation 55 and / or user profile 56 modules can be used to allow the stall manager 42 to customize the choice of the second one. source with respect to the time of stall execution, the location of the user, and / or the user's preferences.
- a user terminal may switch to a second program corresponding to an advertising page on the restaurants around the user at lunch time.
- the choice of the replacement audio source is firstly dependent on the detected signature, as defined in an action / signature association scheme of the module. basic action 53. Then, this choice can be refined, adapted to the geographical location and / or customized according to the technologies supported by the terminal (geolocation, user profile, etc.) from the clock modules 54, geolocation 55 and / or user profile 56.
- the technique used to calculate the signatures is a conventional technique, such as those described in the document "A Review of Algorithms for Audio Fingerprinting” (P. Cano et al., In International Workshop on Multimedia Signal Processing, US Virgin Islands , December 2002) for example.
- the audio recognition module 44 can implement a calculation algorithm and comparison of signatures as described in the patent application WO2005101292 filed March 18, 2005.
- FIG. 6 also shows a second embodiment of the invention according to which the audio recognition module 44 implements a tattoo detection algorithm.
- a tattoo is inserted in the specific audio fragment, in order to obtain, for example, a tattooed sound point Vw.
- these tattoo determination and insertion operations in the audio fragment can be performed in the studio.
- the insertion of a tattooed audio fragment in a digital signal carrying a program can be done in the studio, during the creation of the program, or by the source, prior to the broadcast of the program.
- SI and S2 are again considered according to this example.
- the source SI generates a digital signal carrying a first program comprising an audio part.
- tattooed sound points Vw are inserted by the source S1 into the digital signal carrying the first program before it is broadcast, for example at the beginning and the end of this program.
- the digital signal broadcast by the source SI for example a national headend, is modified, since it carries at least one tattoo.
- the receiver of the broadcast site or the user terminal therefore receives a digital signal broadcast by the source SI, carrying at least one tattooed audio fragment.
- the audio portion of the digital signal is decoded if necessary, and presented to the audio recognition module 44.
- the audio recognition module 44 informs the stall manager 42.
- the stall command manager 42 taking into account a base of actions to be performed according to the tattoo detected 61, generates a stall (or hang-up) order and informs the stall module 41 of the new source on which the receiver must switch, like source S2, by means of an audio source selector for example. For example, it is possible to insert different tattoos depending on the source on which you want to switch.
- the receiver therefore receives a program broadcast by the source S2 (which can be rebroadcast by the repeater of the broadcast site in the case where the receiver is the receiver of a broadcast site, or restored on the terminal by example by playing the audio part).
- the stall command manager 42 can in particular take account of at least one criterion belonging to the group comprising:
- a receiver of a broadcast site having three sources SI (satellite for example for the national stream), S2 (IP for example for regional information) and S3 (internal storage or networked files for local advertising), we can define the following actions in the action database to be performed: regional stall (satellite to IP), advertising stall (satellite to internal memory), return to the main source (IP to satellite or internal memory to satellite), etc.
- Each action will be associated with a particular tattoo (trigger).
- the secondary source may be a stream broadcast over an IP network, a stream broadcast by radio wave (FM), a remote file available in a network or a file. present in a storage space of the terminal, previously downloaded for example.
- FM radio wave
- an action / tattoo association scheme for associating an action with a particular tattoo according to data from the headend can be provided to the terminal and / or the broadcast site, in order to help the stall manager 42 to decide which source to switch to.
- this tattoos / actions association scheme can be transmitted asynchronously from an action / tattoo association module 65 from the headend / production site to the basic action module 61.
- failover module is implemented in a user terminal, optional clock 62, geolocation 63 and / or user profile 64 modules may be used to allow the stall manager 42 to customize the choice of the second source by report at the time of stall execution, the location of the user, and / or the preferences of the user.
- a user terminal may switch to a second program corresponding to an advertising page on the restaurants around the user at lunch time.
- the choice of the replacement audio source is firstly dependent on the tattoo detected, as defined in an action / tattoo association scheme of the basic action module 65. Then, this choice can be refined, adapted to the geographical location and / or customized according to the technologies supported by the terminal (geolocation, user profile, etc.) from the clock modules 62, geolocation 63 and / or user profile 64.
- the technique used to calculate the tattoo is a conventional technique, for example implementing a spread spectrum, as described in the document "Detecting Hidden Information from Watermarked Signal using Granulation Based Fitness Approximation", M. Davarynejad et al. , Applications of Soft Computing: From Theory to Kir, Springer, Series: Advances in Intelligent and Soft Computing, Volume 58/2009.
- FIGS. 7 and 8 examples are given of the simplified structure of a headend and a failover module, or switch, intended to be implemented in a user terminal or in a receiver. a broadcast site, implementing a switching technique according to an embodiment described above.
- FIGS. 7 and 8 illustrate only one particular way, among several possible, to achieve the various embodiments detailed above.
- the failover module illustrated in FIG. 7, comprises a RAM memory 70, a processing unit 71, equipped for example with a processor, and driven by a computer program stored in a ROM 72, implementing the switching method according to one embodiment of the invention.
- the code instructions of the computer program 72 are for example loaded into the RAM memory 70 before being executed by the processor of the processing unit 71.
- the processing unit 71 receives as input a signal carrying a first program, possibly in which at least one tattoo has been inserted.
- the processor of the processing unit 71 implements the steps of the switching method described above, according to the instructions of the computer program 72, to replace the first program with a second program when a specific audio fragment is detected.
- the failover module comprises, in addition to the memory 70, means for detecting, in a signal carrying the first program, a specific audio fragment, and means for replacing, in the signal, the first program by the second program, in case of positive detection. These means are controlled by the processor of the processing unit 71.
- This failover module can be an integral part of a receiver of a broadcast site, itself associated with a retransmitter or an integral part of the retransmitter, or a receiver of a terminal.
- the headend illustrated in FIG. 8, comprises a RAM 80, a processing unit 81, equipped for example with a processor, and driven by a computer program stored in a ROM 82, implementing the method of diffusion according to one embodiment of the invention.
- the code instructions of the computer program 82 are for example loaded into the RAM 80 before being executed by the processor of the processing unit 81.
- the processing unit 81 receives as input a program to be broadcast and one or more specific audio fragments.
- the processor of the processing unit 81 implements the steps of the broadcasting method described above, according to the instructions of the computer program 82, for broadcasting the signal and information representative of the specific audio fragment or fragments.
- the head end includes, in addition to the memory 80, means for generating a signal carrying the program and the specific audio fragment or fragments, means for broadcasting information representative of the specific audio fragment or fragments, means of broadcasting the signal.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1260334A FR2997597B1 (fr) | 2012-10-30 | 2012-10-30 | Procede et module de basculement d'un premier programme vers un deuxieme programme, procede de diffusion, tete de reseau, programme d'ordinateur et medium de stockage correspondants. |
PCT/EP2013/072649 WO2014067968A1 (fr) | 2012-10-30 | 2013-10-29 | Procédé et module de basculement d'un premier programme vers un deuxième programme, procédé de diffusion, tête de réseau, programme d'ordinateur et medium de stockage correspondants |
Publications (1)
Publication Number | Publication Date |
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EP2915330A1 true EP2915330A1 (fr) | 2015-09-09 |
Family
ID=47714240
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Application Number | Title | Priority Date | Filing Date |
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EP13783611.0A Ceased EP2915330A1 (fr) | 2012-10-30 | 2013-10-29 | Procédé et module de basculement d'un premier programme vers un deuxième programme, procédé de diffusion, tête de réseau, programme d'ordinateur et medium de stockage correspondants |
Country Status (3)
Country | Link |
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EP (1) | EP2915330A1 (fr) |
FR (1) | FR2997597B1 (fr) |
WO (1) | WO2014067968A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FR3042369B1 (fr) * | 2015-10-12 | 2017-12-08 | Tdf | Enrichissement contextuel par reconnaissance audio |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2713852B1 (fr) | 1993-12-14 | 1996-01-19 | Telediffusion Fse | Multiplexage fréquentiel d'un signal de données et d'un signal sonore. |
FR2734977B1 (fr) | 1995-06-02 | 1997-07-25 | Telediffusion Fse | Systeme de diffusion de donnees. |
US6067479A (en) * | 1997-11-24 | 2000-05-23 | Acme Broadcasting Inc | FM translator unobtrusive audio segment insertion system |
FR2812503B1 (fr) | 2000-07-31 | 2003-03-28 | Telediffusion De France Tdf | Procede et systeme de codage-decodage d'informations numeriques dans un signal sonore transmis par un canal reverberant |
US20030110516A1 (en) * | 2001-10-31 | 2003-06-12 | Sony Corporation | System and method for embedding data in broadcast |
US7606327B2 (en) * | 2003-07-28 | 2009-10-20 | Delphi Technologies, Inc. | Method to receive local information with a national broadcast service |
FR2868572B1 (fr) | 2004-04-05 | 2006-06-09 | Francois Lebrat | Procede de recherche de contenu, notamment d'extraits communs entre deux fichiers informatiques |
WO2010017315A2 (fr) * | 2008-08-05 | 2010-02-11 | Invidi Technologies Corporation | Insertion nationale de publicité ciblée |
FR2940563B1 (fr) * | 2008-12-18 | 2012-04-06 | Tdf | Procedes de diffusion et de re-diffusion d'un signal dans un reseau de diffusion radiophonique, diffuseur et re-diffuseur, signal et produits programme d'ordinateur correspondants. |
US8407735B2 (en) * | 2008-12-24 | 2013-03-26 | Echostar Technologies L.L.C. | Methods and apparatus for identifying segments of content in a presentation stream using signature data |
-
2012
- 2012-10-30 FR FR1260334A patent/FR2997597B1/fr active Active
-
2013
- 2013-10-29 WO PCT/EP2013/072649 patent/WO2014067968A1/fr active Application Filing
- 2013-10-29 EP EP13783611.0A patent/EP2915330A1/fr not_active Ceased
Non-Patent Citations (2)
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None * |
See also references of WO2014067968A1 * |
Also Published As
Publication number | Publication date |
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FR2997597B1 (fr) | 2015-12-18 |
WO2014067968A1 (fr) | 2014-05-08 |
FR2997597A1 (fr) | 2014-05-02 |
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